Question

how can water change to gas

Answer 1

Water can change into gas through a process called evaporation. When water is heated, the molecules within the water gain energy and begin to move faster. This increased movement causes some of the molecules to break free from the surface of the liquid and become water vapor, which is a gas. This process can occur naturally in the environment, such as when the sun heats up a body of water, or can be facilitated through artificial means, such as boiling water on a stove.